Updated docs, fixed style bugs, and a wee bit of cleanup

I like lists:

- [x] Added browser support to `README.md` file (closes #27)
- [x] Updated page titles to describe the content better
- [x] Removed unneeded namespace imports
- [x] Fixed a bug with the main content area content overflowing its container at ~770px
- [x] Users can now remove availabilities from their schedules (closes #35)